The UEFA Champions League (UCL) is Europe’s premier annual club football competition, organized by the Union of European Football Associations (UEFA). Established in 1955 as the European Champion Clubs' Cup, it was rebranded in 1992 to its current format. The tournament features top-division European clubs, qualifying based on their domestic league performances. It begins with a league phase, progresses to knockout rounds, and ends in a grand final. Known for its elite competition and global appeal, the Champions League is among the most prestigious tournaments in football. Real Madrid holds the record for the most titles, with 15 wins.